Calculate: -8x * (7x^2-2x+5)

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Expression: $-8x \times \left( 7{x}^{2}-2x+5 \right)$

Multiply each term in the parentheses by $-8x$

$-8x \times 7{x}^{2}-8x \times \left( -2x \right)-8x \times 5$

Calculate the product

$-56{x}^{3}-8x \times \left( -2x \right)-8x \times 5$

Multiplying two negatives equals a positive: $\left( - \right) \times \left( - \right)=\left( + \right)$

$-56{x}^{3}+8x \times 2x-8x \times 5$

Calculate the product

$-56{x}^{3}+16{x}^{2}-8x \times 5$

Calculate the product

$-56{x}^{3}+16{x}^{2}-40x$

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